A novel polyimide derivative PMAQ is prepared by a condensation polymerization of pyromellitic dianhydride and 2, 6diaminoanthraquinone and a flexible electrode film PMAQ-SWNT is further fabricated by filtration with single-wall carbon nanotube dispertions. PMAQ connets different carbonyl groups of dianhydride and quinone together, therefore combines the advantages of different units together. Electrochemical tests show that PMAQ-SWNT can transfer three electrons reversibly and theoretical calculation also prove that. PMAQ-SWNT shows high capacity of 190 mA h g −1 and superior rate performance, remaining 120 mA h g −1 at 20 C. PMAQ-SWNT is a promising flexible electrode because of good performance and flexibility.
were synthesised from high aluminium fly ash by using a carbothermal reduction-nitridation process. The effects of temperature and the addition of carbon black on the phase compositions and morphologies have been investigated using X-ray diffraction (XRD) and scanning electron microscopy (SEM). Thermodynamic analysis has been used to study phase transformations. For the sample with the stoichiometric carbon black content, the product formed at 1500uC was single phase short prismatic Si 3 Al 3 O 3 N 5 . The products at 1600uC were Ca-a-Sialon accompanied by AlN, whereas at 1700uC, Si 4 Al 2 O 2 N 6 and SiAl 4 O 2 N 4 formed. Increasing the carbon black at 1500uC, Si 3 Al 3 O 3 N 5 , b-SiC, 15R and Fe x Si were produced as reaction products.
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